/*! firebase-admin v6.4.0 */
"use strict";
/*!
 * Copyright 2018 Google Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
Object.defineProperty(exports, "__esModule", { value: true });
var deep_copy_1 = require("../utils/deep-copy");
var utils = require("../utils");
var validator = require("../utils/validator");
var error_1 = require("../utils/error");
/**
 * @param {any} obj The object to check for number field within.
 * @param {string} key The entry key.
 * @return {number|undefined} The corresponding number if available.
 */
function getNumberField(obj, key) {
    if (typeof obj[key] !== 'undefined' && obj[key] !== null) {
        return parseInt(obj[key].toString(), 10);
    }
    return undefined;
}
/**
 * Converts a UserImportRecord to a UploadAccountUser object. Throws an error when invalid
 * fields are provided.
 * @param {UserImportRecord} user The UserImportRecord to conver to UploadAccountUser.
 * @param {ValidatorFunction=} userValidator The user validator function.
 * @return {UploadAccountUser} The corresponding UploadAccountUser to return.
 */
function populateUploadAccountUser(user, userValidator) {
    var result = {
        localId: user.uid,
        email: user.email,
        emailVerified: user.emailVerified,
        displayName: user.displayName,
        disabled: user.disabled,
        photoUrl: user.photoURL,
        phoneNumber: user.phoneNumber,
        providerUserInfo: [],
        customAttributes: user.customClaims && JSON.stringify(user.customClaims),
    };
    if (typeof user.passwordHash !== 'undefined') {
        if (!validator.isBuffer(user.passwordHash)) {
            throw new error_1.FirebaseAuthError(error_1.AuthClientErrorCode.INVALID_PASSWORD_HASH);
        }
        result.passwordHash = utils.toWebSafeBase64(user.passwordHash);
    }
    if (typeof user.passwordSalt !== 'undefined') {
        if (!validator.isBuffer(user.passwordSalt)) {
            throw new error_1.FirebaseAuthError(error_1.AuthClientErrorCode.INVALID_PASSWORD_SALT);
        }
        result.salt = utils.toWebSafeBase64(user.passwordSalt);
    }
    if (validator.isNonNullObject(user.metadata)) {
        if (validator.isNonEmptyString(user.metadata.creationTime)) {
            result.createdAt = new Date(user.metadata.creationTime).getTime();
        }
        if (validator.isNonEmptyString(user.metadata.lastSignInTime)) {
            result.lastLoginAt = new Date(user.metadata.lastSignInTime).getTime();
        }
    }
    if (validator.isArray(user.providerData)) {
        user.providerData.forEach(function (providerData) {
            result.providerUserInfo.push({
                providerId: providerData.providerId,
                rawId: providerData.uid,
                email: providerData.email,
                displayName: providerData.displayName,
                photoUrl: providerData.photoURL,
            });
        });
    }
    // Remove blank fields.
    var key;
    for (key in result) {
        if (typeof result[key] === 'undefined') {
            delete result[key];
        }
    }
    if (result.providerUserInfo.length === 0) {
        delete result.providerUserInfo;
    }
    // Validate the constructured user individual request. This will throw if an error
    // is detected.
    if (typeof userValidator === 'function') {
        userValidator(result);
    }
    return result;
}
/**
 * Class that provides a helper for building/validating uploadAccount requests and
 * UserImportResult responses.
 */
var UserImportBuilder = /** @class */ (function () {
    /**
     * @param {UserImportRecord[]} users The list of user records to import.
     * @param {UserImportOptions=} options The import options which includes hashing
     *     algorithm details.
     * @param {ValidatorFunction=} userRequestValidator The user request validator function.
     * @constructor
     */
    function UserImportBuilder(users, options, userRequestValidator) {
        this.users = users;
        this.options = options;
        this.userRequestValidator = userRequestValidator;
        this.requiresHashOptions = false;
        this.validatedUsers = [];
        this.userImportResultErrors = [];
        this.indexMap = {};
        this.validatedUsers = this.populateUsers(this.users, this.userRequestValidator);
        this.validatedOptions = this.populateOptions(this.options, this.requiresHashOptions);
    }
    /**
     * Returns the corresponding constructed uploadAccount request.
     * @return {UploadAccountRequest} The constructed uploadAccount request.
     */
    UserImportBuilder.prototype.buildRequest = function () {
        var users = this.validatedUsers.map(function (user) {
            return deep_copy_1.deepCopy(user);
        });
        return deep_copy_1.deepExtend({ users: users }, deep_copy_1.deepCopy(this.validatedOptions));
    };
    /**
     * Populates the UserImportResult using the client side detected errors and the server
     * side returned errors.
     * @return {UserImportResult} The user import result based on the returned failed
     *     uploadAccount response.
     */
    UserImportBuilder.prototype.buildResponse = function (failedUploads) {
        var _this = this;
        // Initialize user import result.
        var importResult = {
            successCount: this.users.length - this.userImportResultErrors.length,
            failureCount: this.userImportResultErrors.length,
            errors: deep_copy_1.deepCopy(this.userImportResultErrors),
        };
        importResult.failureCount += failedUploads.length;
        importResult.successCount -= failedUploads.length;
        failedUploads.forEach(function (failedUpload) {
            importResult.errors.push({
                // Map backend request index to original developer provided array index.
                index: _this.indexMap[failedUpload.index],
                error: new error_1.FirebaseAuthError(error_1.AuthClientErrorCode.INVALID_USER_IMPORT, failedUpload.message),
            });
        });
        // Sort errors by index.
        importResult.errors.sort(function (a, b) {
            return a.index - b.index;
        });
        // Return sorted result.
        return importResult;
    };
    /**
     * Validates and returns the hashing options of the uploadAccount request.
     * Throws an error whenever an invalid or missing options is detected.
     * @param {UserImportOptions} options The UserImportOptions.
     * @param {boolean} requiresHashOptions Whether to require hash options.
     * @return {UploadAccountOptions} The populated UploadAccount options.
     */
    UserImportBuilder.prototype.populateOptions = function (options, requiresHashOptions) {
        var populatedOptions;
        if (!requiresHashOptions) {
            return {};
        }
        if (!validator.isNonNullObject(options.hash)) {
            throw new error_1.FirebaseAuthError(error_1.AuthClientErrorCode.MISSING_HASH_ALGORITHM, "\"hash.algorithm\" is missing from the provided \"UserImportOptions\".");
        }
        if (typeof options.hash.algorithm === 'undefined' ||
            !validator.isNonEmptyString(options.hash.algorithm)) {
            throw new error_1.FirebaseAuthError(error_1.AuthClientErrorCode.INVALID_HASH_ALGORITHM, "\"hash.algorithm\" must be a string matching the list of supported algorithms.");
        }
        var rounds;
        switch (options.hash.algorithm) {
            case 'HMAC_SHA512':
            case 'HMAC_SHA256':
            case 'HMAC_SHA1':
            case 'HMAC_MD5':
                if (!validator.isBuffer(options.hash.key)) {
                    throw new error_1.FirebaseAuthError(error_1.AuthClientErrorCode.INVALID_HASH_KEY, "A non-empty \"hash.key\" byte buffer must be provided for " +
                        ("hash algorithm " + options.hash.algorithm + "."));
                }
                populatedOptions = {
                    hashAlgorithm: options.hash.algorithm,
                    signerKey: utils.toWebSafeBase64(options.hash.key),
                };
                break;
            case 'MD5':
            case 'SHA1':
            case 'SHA256':
            case 'SHA512':
            case 'PBKDF_SHA1':
            case 'PBKDF2_SHA256':
                rounds = getNumberField(options.hash, 'rounds');
                if (isNaN(rounds) || rounds < 0 || rounds > 120000) {
                    throw new error_1.FirebaseAuthError(error_1.AuthClientErrorCode.INVALID_HASH_ROUNDS, "A valid \"hash.rounds\" number between 0 and 120000 must be provided for " +
                        ("hash algorithm " + options.hash.algorithm + "."));
                }
                populatedOptions = {
                    hashAlgorithm: options.hash.algorithm,
                    rounds: rounds,
                };
                break;
            case 'SCRYPT':
                if (!validator.isBuffer(options.hash.key)) {
                    throw new error_1.FirebaseAuthError(error_1.AuthClientErrorCode.INVALID_HASH_KEY, "A \"hash.key\" byte buffer must be provided for " +
                        ("hash algorithm " + options.hash.algorithm + "."));
                }
                rounds = getNumberField(options.hash, 'rounds');
                if (isNaN(rounds) || rounds <= 0 || rounds > 8) {
                    throw new error_1.FirebaseAuthError(error_1.AuthClientErrorCode.INVALID_HASH_ROUNDS, "A valid \"hash.rounds\" number between 1 and 8 must be provided for " +
                        ("hash algorithm " + options.hash.algorithm + "."));
                }
                var memoryCost = getNumberField(options.hash, 'memoryCost');
                if (isNaN(memoryCost) || memoryCost <= 0 || memoryCost > 14) {
                    throw new error_1.FirebaseAuthError(error_1.AuthClientErrorCode.INVALID_HASH_MEMORY_COST, "A valid \"hash.memoryCost\" number between 1 and 14 must be provided for " +
                        ("hash algorithm " + options.hash.algorithm + "."));
                }
                if (typeof options.hash.saltSeparator !== 'undefined' &&
                    !validator.isBuffer(options.hash.saltSeparator)) {
                    throw new error_1.FirebaseAuthError(error_1.AuthClientErrorCode.INVALID_HASH_SALT_SEPARATOR, "\"hash.saltSeparator\" must be a byte buffer.");
                }
                populatedOptions = {
                    hashAlgorithm: options.hash.algorithm,
                    signerKey: utils.toWebSafeBase64(options.hash.key),
                    rounds: rounds,
                    memoryCost: memoryCost,
                    saltSeparator: utils.toWebSafeBase64(options.hash.saltSeparator || Buffer.from('')),
                };
                break;
            case 'BCRYPT':
                populatedOptions = {
                    hashAlgorithm: options.hash.algorithm,
                };
                break;
            case 'STANDARD_SCRYPT':
                var cpuMemCost = getNumberField(options.hash, 'memoryCost');
                if (isNaN(cpuMemCost)) {
                    throw new error_1.FirebaseAuthError(error_1.AuthClientErrorCode.INVALID_HASH_MEMORY_COST, "A valid \"hash.memoryCost\" number must be provided for " +
                        ("hash algorithm " + options.hash.algorithm + "."));
                }
                var parallelization = getNumberField(options.hash, 'parallelization');
                if (isNaN(parallelization)) {
                    throw new error_1.FirebaseAuthError(error_1.AuthClientErrorCode.INVALID_HASH_PARALLELIZATION, "A valid \"hash.parallelization\" number must be provided for " +
                        ("hash algorithm " + options.hash.algorithm + "."));
                }
                var blockSize = getNumberField(options.hash, 'blockSize');
                if (isNaN(blockSize)) {
                    throw new error_1.FirebaseAuthError(error_1.AuthClientErrorCode.INVALID_HASH_BLOCK_SIZE, "A valid \"hash.blockSize\" number must be provided for " +
                        ("hash algorithm " + options.hash.algorithm + "."));
                }
                var dkLen = getNumberField(options.hash, 'derivedKeyLength');
                if (isNaN(dkLen)) {
                    throw new error_1.FirebaseAuthError(error_1.AuthClientErrorCode.INVALID_HASH_DERIVED_KEY_LENGTH, "A valid \"hash.derivedKeyLength\" number must be provided for " +
                        ("hash algorithm " + options.hash.algorithm + "."));
                }
                populatedOptions = {
                    hashAlgorithm: options.hash.algorithm,
                    cpuMemCost: cpuMemCost,
                    parallelization: parallelization,
                    blockSize: blockSize,
                    dkLen: dkLen,
                };
                break;
            default:
                throw new error_1.FirebaseAuthError(error_1.AuthClientErrorCode.INVALID_HASH_ALGORITHM, "Unsupported hash algorithm provider \"" + options.hash.algorithm + "\".");
        }
        return populatedOptions;
    };
    /**
     * Validates and returns the users list of the uploadAccount request.
     * Whenever a user with an error is detected, the error is cached and will later be
     * merged into the user import result. This allows the processing of valid users without
     * failing early on the first error detected.
     * @param {UserImportRecord[]} users The UserImportRecords to convert to UnploadAccountUser
     *     objects.
     * @param {ValidatorFunction=} userValidator The user validator function.
     * @return {UploadAccountUser[]} The populated uploadAccount users.
     */
    UserImportBuilder.prototype.populateUsers = function (users, userValidator) {
        var _this = this;
        var populatedUsers = [];
        users.forEach(function (user, index) {
            try {
                var result = populateUploadAccountUser(user, userValidator);
                if (typeof result.passwordHash !== 'undefined') {
                    _this.requiresHashOptions = true;
                }
                // Only users that pass client screening will be passed to backend for processing.
                populatedUsers.push(result);
                // Map user's index (the one to be sent to backend) to original developer provided array.
                _this.indexMap[populatedUsers.length - 1] = index;
            }
            catch (error) {
                // Save the client side error with respect to the developer provided array.
                _this.userImportResultErrors.push({
                    index: index,
                    error: error,
                });
            }
        });
        return populatedUsers;
    };
    return UserImportBuilder;
}());
exports.UserImportBuilder = UserImportBuilder;
